Agriculture Entomology Study Table(2)

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Agriculture Entomology Study Point

Subject:- Agriculture Entomology

Agriculture Entomology Study Material

1.Insect Attract By Trap crop AgriExam.Com

Trap crop	Insect
Bhendi	Cotton Jassids & Spotted boll worms.
Tur	Cotton gray Weevil
Castor	Citrus Fruit sucking moth
Mustard	Cabbage aphids & Diamond back moth (DBM).
cow pea or onion	Boll worms
Suru sugarcane(2-3 month early sowing)	sugarcane Early shoot borer.
Kharif Jowar (sowing before 7 July)	Jowar shoot fly.

2.Different Biological Agent & Their Examples

Biological agent	Examples AgriExam.Com
True parasites	Mosquitoes, lice, bed bugs.
Parasitoid	Parasitic Wasps, Tachinid flies, Trichogramma spp.
Predators	Mantids, lady bird beetles, spiders etc.

3.Insect Control By Different Predators

Predators	Control Insect
Chrysoperla carnea	Aphids, Jassid, white fly etc.
Cryptolaemus montromouzeiri	Mealybugs
Sticolotis modagasa	Sugarcane scales.
Rodolia cardinalis	Cottony cushion scale.

4.Mouth Parts of an Insect

5.Types of Reproduction in insects

Oviparity:- Female lay eggs either fertilized or unfertilized.
Viviparity:- The female lay either larva or nymph instead of eggs.
Parthenogenesis:- It is development of embryo egg without fertilization.
Paedogenesis:- The immature forms before attaining adult stage reproduce.
Polyembrony:- Production of two or more embryos from a single egg.
Hermaphrodism:- Presence of both male and female reproductive organs in one and the same individual.

6.Toxicity Level & Their Indicate Colour AgriExam.Com

Toxicity Level	Insecticide	Colour
Extremely toxic (LD 50 upto 5 mg/kg)	phorate	Red colour
Highly toxic (LD 50 between 6 to 99 mg/kg)	Phosphamidon	Yellow colour
Moderately toxic (LD 50 between 100 to 499 mg/kg)	Dimethoate	Blue colour
Slightly toxic (LD 50, 500 mg/kg and above)	Malathion, carbaryl.	Green Colour